Temperature-regulator



(No Model.) 2 Sheets-Sheet 1.

J. F.1VIOELROY.

TEMPERATURE REGULATOR. No. 469,526. Patented PGb.'Z3, 1892,

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. m, M, i i I l m H 1 t M v w W (No Model.) 2 Sheets-Sheet 2.

J. P. MQELBOY. TEMPERATURE REGULATOR.

No. 469,526. Patented Feb. 23, 1892.

Elllllll UNITED STATES PATENT @rrtcn.

JAMES F. MOELROY, OF ALBANY, NEIV YORK, ASSIGUOR TO THE CONSOLI- DATEDCAR HEATING COMPANY, OF \VHEELING, \VEST VIRGINIA.

TEMPERATURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 469,526, dated February23, 1892.

Apvlieation filed May 14, 1891. Serial No. 392,748. (No model.)

To aZZ whom it may concern.-

Be it known that I, JAMES F. MOELROY, a citizen of the United States,residing at Albany, in the county of. Albany and State of 5 New York,have invented certain new and useful Improvements inTemperature-Regulators, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements intemperature-regulators; and it consists in the peculiar construction ofthe actuating mechanism between the thermostat and the valve or damperto be operated.

r 5 The invention particularly consists in the means employed fortransferring the expansive force of a thermic cell into a rotary motionand in utilizing that motion to actuate the valve or damper, and,further, in the pcculiar construction,arrangement and combination of thevarious parts, all as more fully hereinafter described.

In the drawings, Figure l is a vertical central section through myimproved device.

2 5 Fig. 2 is a front elevation thereof. Fig. 3 is a cross-section online a: x in Fig. 1. Fig.4 is a side elevation of the valve andconnections. Fig. 5 is a section through the shaft-coupling.

A is the frame. B is a lever pivoted at the 0 top and extendingvertically to near the bottom. This frame is provided with a centralaperture, in which the hub C is adjustably engaged, preferably by meansof a screwt-hreaded engagement. This hub carries on 5 its outer face theexpansion-chambers or thermic cells D, of which there may be one ormore. These cells are connected by means of the stem E and neck Fcentrally with the lever B, preferably by forming in said lever anentering-aperture a and the locking-slot I),

as plainly shown in Fig. 2. This lever is provided at its lower end witha lateral offset or arm G, which is provided on its inner face with arack I-I, adapted to engage with a pin- 5 ion I, secured to the upperend of the shaft J, which is secured in a suitable vertical bearing inthe frame.

K is a coupling connecting the shaftJ with the connecting shaft or redL. This shaft L is provided at its lower end with any suitable means oftransferring the motion to the valve or damper to be operated. In Figs.1, 4L, and 5 I have shown it as applied directly to the valvestem M, tothe upper end of which is applied a coupling N, into which the shaft Lslidinglyengages,a keyway 0 being formed in the shaft and the screw 1')entering said keyway through the coupling, all so arranged that therotation of the shaft L will turn the stem M through the coupling N,allowing a sliding movement of the coupling upon the shaft L. This stemI provide with a rapidlyretreating thread, so that when turned in onedirection the valve will quickly close and when turned in the oppositedirection the valve will quickly open, the raising and lowering movementof the stem being provided for in the construction described. here it isdesired to carry the motion in a horizontal direction, I use the bearing0, having v'ertical and horizontal journals for the shafts L and P,respectively, motion being transmitted through one to the other by meansof the beveled gear-wheels Q- and Q. This construction allows me todispense with a rigid frame connecting the thermostat and valve casing,as it is not necessary with the shafts and gearing to have the parts soexactly placed. The expansion and contraction is easily taken up in thegears, as is any slight 8o displacement.

that I claim as my invention is- 1. In a temperature-regulator, thecombination of a frame, a thermostat, an actuatinglever, a rack on saidlever, a connecting-shaft, 8 5 and a pinion on said shaft with which therack engages, substantially as described.

2. In a temperature-regulator, the combination of a frame,'a thermostat,a lever, a lateral rack-bar on said lever, a pinion with which saidrack-bar engages, a shaft rotated by said pinion, and a valve-stemrotated by said shaft, substantially as described.

In a temperattire-regulator, the c0mbination, with the thermostat actingto rotate F, entering-aperture a, and locking-slot I), I0

a shaft, a valve having a rapidly-retreating substantially as described.

thread, and a coupling having a sliding engagement with the shaft orstem, substantially as described.

4. In a temperature-regulater, the combination 01": the frame, thethermic cell, the actuating-lever B, a rack on the lever engaging apinion for moving the valve, the stem E, neck In testimony whereof Iaffix my signature in presence of two witnesses.

JAMES F. MGELROY.

Witnesses:

ALMON 0. BROWN, H. J. NODINE.

